Passing a function as parameter to another in Lucio

gistfile1.clj

; first function receives another function and two values
; second function returns the average of two values
(define calculate
  (fun 
   ([op v1 v2]
    (op v1 v2))))

(define average
  (fun
   ([a b]
    (/ (+ a b) 2))))

(calculate average 3 5)